Question:
A bullet of mass 50 g is fired from a 5 kg gun with a velocity of 1 km/sec. The speed of recoil of the gun is:
A bullet of mass 50 g is fired from a 5 kg gun with a velocity of 1 km/sec. The speed of recoil of the gun is:
Updated On: Sep 3, 2024
- 5 m/s
- 1 m/s
- 0.5 m/s
- 10 m/s
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The Correct Option is D
Solution and Explanation
Applying law of conservation or momentum $ mv\text{ }=\text{ }m\upsilon $ Here, mass of bullet $ m=50\text{ }g=0.05\text{ }kg $ velocity of bullet $ =1\text{ }km\text{/}sec=1000\text{ }m\text{/}sec $ mass of gun $ m=5kg $ or $ 0.05\times 1000=5v $ or $ v=\frac{0.05\times 1000}{5} $ so, $ v=10\,m\text{/}s $
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The collision theory states that a chemical reaction can only occur between particles when they collide (hit each other). The collision between reactant particles is necessary but not sufficient for a reaction to take place. The collisions also have to be effective. It is important to understand the exact nature of an effective collision since this determines whether particles react with each other and form new products.
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